Chances are, you recognize the logo for Kuro Neko Yamato.  The black cat carrying its kitten is great branding.  But did you know that the delivery service has an English website that lets you do things like track packages?  Check it out!  http://www.kuronekoyamato.co.jp/english/index.html

Another helpful thing is an explanation of their attempted delivery notices, which you can find here:

http://www.kuronekoyamato.co.jp/english/support/attempted_delivery_notice.html